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New 1976999 Rotocoil A Replacement suitable for Caterpillar Equipment
- New Rotocoil A Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 1976999 Rotocoil-engine Valve
â–¶Specification for 1976999 Rotocoil-engine Valve
â–¶Exact Fit Guarantee for 1976999 Rotocoil-engine Valve
â–¶| Models | 3508, 3508B, 3508C, 3512, 3512B, 3516, 3516B, G3508, G3508B, G3512, 5130B, 5230, 5230B, 776C, 776D, 777, 777D, 784C, 785, 785B, 785C, 789B, 789C, 793B, 793C, 797, 797B, 854G, 992G, 994, 994D, D11R |
|---|---|
| Dimensions | 0.39x0.39x0.39 |
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Everything fine, thank you. The only thing with which I had a problem in your Software, is that when I have more than 10 different items on the list, I can't scroll to the first ones. But besides that, I am very happy in going on with buying your parts.
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A Delay Handled the Right Way
Honestly, if I were in Miami like my shipment was, I wouldn?t have been in a hurry to ship out either. I was frustrated at first ? delays cost me time on the job ? but Propel Parts stepped up.
Deb, Daniel and the team owned the mistake, kept the communication clear, and graciously refunded my shipping costs without making it a hassle. That kind of accountability is rare these days, and I genuinely appreciated how they handled it.
Things don?t always go perfectly, but these folks proved they?re more interested in doing right by their customers than just pushing parts out the door. Solid company, solid people.
? Jimmy Spong
Hartco Mobile Welding
P.S. Incredible quality on the pin as well. I had to do some custom modifying, and let?s just say the case hardening was ? well ? hard. Great Stuff! Thank you. -
Amazing Help.
I don't know who I spoke with, but they were helpful. We will be buying those parts shortly. -
To my country the company is doing great
The products they market is good and
Affordable.
They can delivery to any country, stree free.
Tested and trusted. -
I almost want to cry ;( writing this review because I dont want people to find out about them and rather keep them in my pocket but they deserve it…
This company is great with Quality Products at amazing prices! Sometimes, their website is not the most accurate but is user friendly and if you got questions they will call back and are very prompt in responding via a call or text to verify inventory before placing an order.
I really appreciate and look forward to continuing to work with you all especially Anthony — he is amazing & the best!!!
Frequently Asked Questions
What is a rotocoil and what does the 1976999 do?
A rotocoil (also known as a valve rotator) is a valve train component that causes the intake or exhaust valve to rotate slightly with each opening cycle. For a full engine rebuild, explore our heavy equipment engine parts category. The 1976999 rotocoil helps extend valve and seat service life significantly compared to a fixed valve arrangement.
Which Caterpillar engines use the 1976999 rotocoil?
This rotocoil is designed for use in specific Caterpillar diesel engine families. Always cross-reference the part number using your engine's serial number and service documentation to confirm the correct specification.
What are the signs of a worn or failed rotocoil?
Symptoms of rotocoil failure include:
- Rapid valve seat recession or uneven valve face wear
- Carbon buildup on valve stems (visible during top-end inspection)
- Increased valve adjustment frequency between service intervals
- Loss of compression in specific cylinders
How do I install the 1976999 rotocoil correctly?
The rotocoil must be installed with the correct orientation on the valve stem. Ensure the valve keepers seat evenly and fully into the retainer groove before releasing the valve spring compressor. An improperly seated rotocoil can cause a valve to drop into the cylinder.
Should I replace all rotocoils during a top-end overhaul?
Yes, replacing the full set of rotocoils during a top-end service is strongly recommended. Consider pairing with our engine overhaul kits to simplify the rebuild process.
Is the 1976999 a high-quality aftermarket component?
Yes ??? this is a premium aftermarket rotocoil that meets or exceeds OEM specifications for rotational performance, dimensional accuracy, and material durability.
What warranty does Propel Parts provide?
The 1976999 rotocoil comes with a 12-month unlimited mileage warranty from Propel Parts. Same-day shipping is available for weekday orders placed before 3:00 PM ET, and worldwide shipping is available.
This 1976999 Rotocoil-engine Valve is compatible with the following models:
3508, 3508B, 3508C, 3512, 3512B, 3516, 3516B, G3508, G3508B, G3512, 5130B, 5230, 5230B, 776C, 776D, 777, 777D, 784C, 785, 785B, 785C, 789B, 789C, 793B, 793C, 797, 797B, 854G, 992G, 994, 994D, D11R & more...
Shipping
We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.
Easy Returns
Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.
Warranty
Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
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